TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Milada
AU  - Pezo, Lato
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/499
AB  - The machine learning technique for prediction and optimization of building material performances became an essential feature in the contemporary civil engineering. The Artificial Neural Network (ANN) prognosis of mortar behavior was conducted in this study. The model appraised the design and characteristics of seventeen either building or high-temperature mortars. Seven different cement types were employed. Seventeen mineral additives of primary and secondary origin were embedded in the mortar mixtures. Cluster Analysis and Principal Component Analysis designated groups of similar mortars assigning them a specific purpose based on monitored characteristics. ANN foresaw the quality of designed mortars. The impact of implemented raw materials on the mortar quality was assessed and evaluated. ANN outputs highlighted the high suitability level of anticipation, i.e., 0.999 during the training period, which is regarded appropriate enough to correctly predict the observed outputs in a wide range of processing parameters. Due to the high predictive accuracy, ANN can replace or be used in combination with standard destructive tests thereby saving the construction industry time, resources, and capital. Good performances of altered cement mortars are positive sign for widening of economical mineral additives application in building materials and making progress towards achieved carbon neutrality by reducing its emission.
T2  - Science of Sintering
T1  - Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives
EP  - 27
IS  - 1
SP  - 11
VL  - 55
DO  - 10.2298/SOS2301011T
ER  - 

@article{
author = "Terzić, Anja and Pezo, Milada and Pezo, Lato",
year = "2023",
abstract = "The machine learning technique for prediction and optimization of building material performances became an essential feature in the contemporary civil engineering. The Artificial Neural Network (ANN) prognosis of mortar behavior was conducted in this study. The model appraised the design and characteristics of seventeen either building or high-temperature mortars. Seven different cement types were employed. Seventeen mineral additives of primary and secondary origin were embedded in the mortar mixtures. Cluster Analysis and Principal Component Analysis designated groups of similar mortars assigning them a specific purpose based on monitored characteristics. ANN foresaw the quality of designed mortars. The impact of implemented raw materials on the mortar quality was assessed and evaluated. ANN outputs highlighted the high suitability level of anticipation, i.e., 0.999 during the training period, which is regarded appropriate enough to correctly predict the observed outputs in a wide range of processing parameters. Due to the high predictive accuracy, ANN can replace or be used in combination with standard destructive tests thereby saving the construction industry time, resources, and capital. Good performances of altered cement mortars are positive sign for widening of economical mineral additives application in building materials and making progress towards achieved carbon neutrality by reducing its emission.",
journal = "Science of Sintering",
title = "Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives",
pages = "27-11",
number = "1",
volume = "55",
doi = "10.2298/SOS2301011T"
}

Terzić, A., Pezo, M.,& Pezo, L.. (2023). Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives. in Science of Sintering, 55(1), 11-27.
https://doi.org/10.2298/SOS2301011T

Terzić A, Pezo M, Pezo L. Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives. in Science of Sintering. 2023;55(1):11-27.
doi:10.2298/SOS2301011T .

Terzić, Anja, Pezo, Milada, Pezo, Lato, "Application of Artificial Neural Networks in Performance Prediction of Cement Mortars with Various Mineral Additives" in Science of Sintering, 55, no. 1 (2023):11-27,
https://doi.org/10.2298/SOS2301011T . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Miličić, Ljiljana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/488
AB  - Natural zeolite and bentonite were used as mineral addi-tions to create cement-based building materials that are safe for the environment. This research focuses on the adsorptive qualities of these two clay raw materials, i.e., their propen-sity to immobilize heavy metal ions like Cd2+. The acquired results were examined using kinetic models of pseudo-first and pseudo-second order. The isotherms of Langmuir and Freundlich were examined. Zeolite and bentonite had differ-ent adsorption affinities for Cd2+ cations. Seven cement binders with various mineral additions (fly ash, zeolite, bentonite) underwent a leaching test. The adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites caused leachates obtained on cement samples with the addition of fly ash and clay (either zeolite or bentonite) to contain lower concentrations of Cd2+ ions than leachates obtained on cement samples with fly ash alone.
T2  - Structural Integrity and Life, Special Issue
T1  - Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives
EP  - 24
SP  - 19
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_488
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Miličić, Ljiljana",
year = "2023",
abstract = "Natural zeolite and bentonite were used as mineral addi-tions to create cement-based building materials that are safe for the environment. This research focuses on the adsorptive qualities of these two clay raw materials, i.e., their propen-sity to immobilize heavy metal ions like Cd2+. The acquired results were examined using kinetic models of pseudo-first and pseudo-second order. The isotherms of Langmuir and Freundlich were examined. Zeolite and bentonite had differ-ent adsorption affinities for Cd2+ cations. Seven cement binders with various mineral additions (fly ash, zeolite, bentonite) underwent a leaching test. The adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites caused leachates obtained on cement samples with the addition of fly ash and clay (either zeolite or bentonite) to contain lower concentrations of Cd2+ ions than leachates obtained on cement samples with fly ash alone.",
journal = "Structural Integrity and Life, Special Issue",
title = "Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives",
pages = "24-19",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_488"
}

Mijatović, N., Terzić, A.,& Miličić, L.. (2023). Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives. in Structural Integrity and Life, Special Issue, 23, 19-24.
https://hdl.handle.net/21.15107/rcub_rims_488

Mijatović N, Terzić A, Miličić L. Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives. in Structural Integrity and Life, Special Issue. 2023;23:19-24.
https://hdl.handle.net/21.15107/rcub_rims_488 .

Mijatović, Nevenka, Terzić, Anja, Miličić, Ljiljana, "Effective removal of the heavy metal ion Cd2+ from the structure of cementitious materials with mineral additives" in Structural Integrity and Life, Special Issue, 23 (2023):19-24,
https://hdl.handle.net/21.15107/rcub_rims_488 .

TY  - JOUR
AU  - Radojević, Zagorka
AU  - Terzić, Anja
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/487
AB  - Institut IMS ima lidersku poziciju među multidisciplinar-nim naučno-istraživačkim organizacijama u Srbiji i regionu. Visoko je pozicioniran u oblasti građevinarstva i inženjer-stva. IMS poseduje jedinstveni spoj naučno-istraživačkog rada i saradnje sa privredom kao vrlo važne karike u lancu primenljivosti i održivosti rešenja i rezultata istraživačkog rada. IMS je decenijama simbol znanja u oblasti građevi-narstva i industrije građevinskih materijala, što aktivno nastavlja kroz aktuelne i planirane naučno-istraživačke aktivnosti - razvojna istraživanja, realizaciju u privredi, primenu najnovijih saznanja i savremenih tehnologija.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Doprinos Instituta IMS razvoju građevinskih materijala (kratak istorijat, pregled stanja i pogledi ka budućnosti)
EP  - 11
SP  - 5
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_487
ER  - 

@article{
author = "Radojević, Zagorka and Terzić, Anja",
year = "2023",
abstract = "Institut IMS ima lidersku poziciju među multidisciplinar-nim naučno-istraživačkim organizacijama u Srbiji i regionu. Visoko je pozicioniran u oblasti građevinarstva i inženjer-stva. IMS poseduje jedinstveni spoj naučno-istraživačkog rada i saradnje sa privredom kao vrlo važne karike u lancu primenljivosti i održivosti rešenja i rezultata istraživačkog rada. IMS je decenijama simbol znanja u oblasti građevi-narstva i industrije građevinskih materijala, što aktivno nastavlja kroz aktuelne i planirane naučno-istraživačke aktivnosti - razvojna istraživanja, realizaciju u privredi, primenu najnovijih saznanja i savremenih tehnologija.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Doprinos Instituta IMS razvoju građevinskih materijala (kratak istorijat, pregled stanja i pogledi ka budućnosti)",
pages = "11-5",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_487"
}

Radojević, Z.,& Terzić, A.. (2023). Doprinos Instituta IMS razvoju građevinskih materijala (kratak istorijat, pregled stanja i pogledi ka budućnosti). in Integritet i vek konstrukcija, specijalno izdanje, 23, 5-11.
https://hdl.handle.net/21.15107/rcub_rims_487

Radojević Z, Terzić A. Doprinos Instituta IMS razvoju građevinskih materijala (kratak istorijat, pregled stanja i pogledi ka budućnosti). in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:5-11.
https://hdl.handle.net/21.15107/rcub_rims_487 .

Radojević, Zagorka, Terzić, Anja, "Doprinos Instituta IMS razvoju građevinskih materijala (kratak istorijat, pregled stanja i pogledi ka budućnosti)" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):5-11,
https://hdl.handle.net/21.15107/rcub_rims_487 .

TY  - JOUR
AU  - Terzić, Anja
AU  - Vasić, Milica
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
AU  - Radojević, Zagorka
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/485
AB  - Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200°C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.
T2  - Science of Sintering 2023 OnLine-First Issue 00
T1  - Application of pyrophyllite in high-temperature treated building materials
SP  - 14
DO  - 10.2298/SOS220610014T
ER  - 

@article{
author = "Terzić, Anja and Vasić, Milica and Stojanović, Jovica and Pavlović, Vladimir and Radojević, Zagorka",
year = "2023",
abstract = "Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200°C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.",
journal = "Science of Sintering 2023 OnLine-First Issue 00",
title = "Application of pyrophyllite in high-temperature treated building materials",
pages = "14",
doi = "10.2298/SOS220610014T"
}

Terzić, A., Vasić, M., Stojanović, J., Pavlović, V.,& Radojević, Z.. (2023). Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering 2023 OnLine-First Issue 00, 14.
https://doi.org/10.2298/SOS220610014T

Terzić A, Vasić M, Stojanović J, Pavlović V, Radojević Z. Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering 2023 OnLine-First Issue 00. 2023;:14.
doi:10.2298/SOS220610014T .

Terzić, Anja, Vasić, Milica, Stojanović, Jovica, Pavlović, Vladimir, Radojević, Zagorka, "Application of pyrophyllite in high-temperature treated building materials" in Science of Sintering 2023 OnLine-First Issue 00 (2023):14,
https://doi.org/10.2298/SOS220610014T . .

TY  - JOUR
AU  - Vasić, Milica
AU  - Terzić, Anja
AU  - Radovanović, Željko
AU  - Radojević, Zagorka
AU  - Warr, L.N.
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/414
AB  - Geopolymerization was investigated as an alternative to traditional ceramic products by developing a more sustainable approach that avoids thermal treatment. The study presents the first known alkali-activation of the raw clay and waste clay brick mixture using the solid to liquid ratios of 2.33 and 2.78. Several experimental sets were prepared to harden under varying conditions (2–4 days drying in 60 °C–70 °C and 3 h steam-curing). Non-activated and activated samples were analyzed for their physical and chemical properties after 14, 21, and 28 days. The tile-shaped specimens exhibited better initial drying behavior than the cubes and produced stronger materials with fewer cracks. Pre-curing in steam conditions induced higher flexural strength (13.7 MPa) and water absorption (13.13%) for the geopolymer tiles. The highest Si/Al molar ratio in the amorphous portion of 5.78 induced the best flexural strength. The geopolymerization process showed microstructural changes associated with the appearance of fibrous Na-zeolite nanocrystals. The degree of geopolymerization and zeolite formation was enhanced by steam-curing, but the microstructural stress and heterogeneity induced by the reactions resulted in higher water absorption. Ongoing reactions of amorphization in the bulk material and further crystallization at the surface are documented after 6 months of curing. This first detailed study reveals that the production of geopolymer ceramics from brick waste is possible, but further optimization of the activating solution and curing parameters is required.
PB  - Elsevier Ltd
T2  - Applied Clay Science
T1  - Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics
VL  - 218
DO  - 10.1016/j.clay.2022.106410
ER  - 

@article{
author = "Vasić, Milica and Terzić, Anja and Radovanović, Željko and Radojević, Zagorka and Warr, L.N.",
year = "2022",
abstract = "Geopolymerization was investigated as an alternative to traditional ceramic products by developing a more sustainable approach that avoids thermal treatment. The study presents the first known alkali-activation of the raw clay and waste clay brick mixture using the solid to liquid ratios of 2.33 and 2.78. Several experimental sets were prepared to harden under varying conditions (2–4 days drying in 60 °C–70 °C and 3 h steam-curing). Non-activated and activated samples were analyzed for their physical and chemical properties after 14, 21, and 28 days. The tile-shaped specimens exhibited better initial drying behavior than the cubes and produced stronger materials with fewer cracks. Pre-curing in steam conditions induced higher flexural strength (13.7 MPa) and water absorption (13.13%) for the geopolymer tiles. The highest Si/Al molar ratio in the amorphous portion of 5.78 induced the best flexural strength. The geopolymerization process showed microstructural changes associated with the appearance of fibrous Na-zeolite nanocrystals. The degree of geopolymerization and zeolite formation was enhanced by steam-curing, but the microstructural stress and heterogeneity induced by the reactions resulted in higher water absorption. Ongoing reactions of amorphization in the bulk material and further crystallization at the surface are documented after 6 months of curing. This first detailed study reveals that the production of geopolymer ceramics from brick waste is possible, but further optimization of the activating solution and curing parameters is required.",
publisher = "Elsevier Ltd",
journal = "Applied Clay Science",
title = "Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics",
volume = "218",
doi = "10.1016/j.clay.2022.106410"
}

Vasić, M., Terzić, A., Radovanović, Ž., Radojević, Z.,& Warr, L.N.. (2022). Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics. in Applied Clay Science
Elsevier Ltd., 218.
https://doi.org/10.1016/j.clay.2022.106410

Vasić M, Terzić A, Radovanović Ž, Radojević Z, Warr L. Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics. in Applied Clay Science. 2022;218.
doi:10.1016/j.clay.2022.106410 .

Vasić, Milica, Terzić, Anja, Radovanović, Željko, Radojević, Zagorka, Warr, L.N., "Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics" in Applied Clay Science, 218 (2022),
https://doi.org/10.1016/j.clay.2022.106410 . .

TY  - JOUR
AU  - Miličić, Ljiljana
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Mijatović, Nevenka
AU  - Brceski, Ilija
AU  - Vukelić, Nikola
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/400
AB  - Rare earth elements (REE) are frequently referred to as ingredients for enhancements in modem industry, as they are extensively applied in many industrial branches due to their accented electro-magnetic and optical properties. REE have end-utilizations as catalysts, magnets, and as dopants for ceramic materials. Rare earth minerals are scarce therefore the unconventional REE-containing resources such as waste materials and industrial byproducts are continuously being investigated. Coal combustion products comprise REE concentrations varying between 200 ppm and 1500 ppm. This quantity can be isolated though the extraction procedure. In this study, the five stages extraction was conducted on the coal combustion ash from the selected landfill site. The extractions of 32 elements (As, Ga, Ce, Be, Ge, Nd, Cr, Zr, Eu, Cu, Nb, Gd, Co, Mo, Dy, Li, Ag, W, Mn, Cd, Au, Ni, In, Hg, Pb, Sn, Ti, V, Sb, Th, Zn, and La) were conveyed. Chemical analyses were conducted via XRF, ICP-OES, ICP-MS, and MS techniques. The complexity of the obtained data was examined by Principal component analysis and Cluster analysis in order to derive interconnections between quantity of elements and landfill characteristics, as well as mutual relationships among the elements of interest, and to assess the accomplishment of REE recovery from the coal ash.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction
EP  - 185
IS  - 2
SP  - 169
VL  - 53
DO  - 10.2298/SOS2102169M
ER  - 

@article{
author = "Miličić, Ljiljana and Terzić, Anja and Pezo, Lato and Mijatović, Nevenka and Brceski, Ilija and Vukelić, Nikola",
year = "2021",
abstract = "Rare earth elements (REE) are frequently referred to as ingredients for enhancements in modem industry, as they are extensively applied in many industrial branches due to their accented electro-magnetic and optical properties. REE have end-utilizations as catalysts, magnets, and as dopants for ceramic materials. Rare earth minerals are scarce therefore the unconventional REE-containing resources such as waste materials and industrial byproducts are continuously being investigated. Coal combustion products comprise REE concentrations varying between 200 ppm and 1500 ppm. This quantity can be isolated though the extraction procedure. In this study, the five stages extraction was conducted on the coal combustion ash from the selected landfill site. The extractions of 32 elements (As, Ga, Ce, Be, Ge, Nd, Cr, Zr, Eu, Cu, Nb, Gd, Co, Mo, Dy, Li, Ag, W, Mn, Cd, Au, Ni, In, Hg, Pb, Sn, Ti, V, Sb, Th, Zn, and La) were conveyed. Chemical analyses were conducted via XRF, ICP-OES, ICP-MS, and MS techniques. The complexity of the obtained data was examined by Principal component analysis and Cluster analysis in order to derive interconnections between quantity of elements and landfill characteristics, as well as mutual relationships among the elements of interest, and to assess the accomplishment of REE recovery from the coal ash.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction",
pages = "185-169",
number = "2",
volume = "53",
doi = "10.2298/SOS2102169M"
}

Miličić, L., Terzić, A., Pezo, L., Mijatović, N., Brceski, I.,& Vukelić, N.. (2021). Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 53(2), 169-185.
https://doi.org/10.2298/SOS2102169M

Miličić L, Terzić A, Pezo L, Mijatović N, Brceski I, Vukelić N. Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction. in Science of Sintering. 2021;53(2):169-185.
doi:10.2298/SOS2102169M .

Miličić, Ljiljana, Terzić, Anja, Pezo, Lato, Mijatović, Nevenka, Brceski, Ilija, Vukelić, Nikola, "Assessment of Efficiency of Rare Earth Elements Recovery from Lignite Coal Combustion Ash via Five-Stage Extraction" in Science of Sintering, 53, no. 2 (2021):169-185,
https://doi.org/10.2298/SOS2102169M . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Dojčinović, Marina
AU  - Miličić, Ljiljana
AU  - Stojanović, Jovica
AU  - Radojević, Zagorka
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/399
AB  - Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Cavitation Properties of Rendering Mortars with Micro Silica Addition
EP  - 459
IS  - 4
SP  - 445
VL  - 53
DO  - 10.2298/SOS2104445T
ER  - 

@article{
author = "Terzić, Anja and Dojčinović, Marina and Miličić, Ljiljana and Stojanović, Jovica and Radojević, Zagorka",
year = "2021",
abstract = "Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Cavitation Properties of Rendering Mortars with Micro Silica Addition",
pages = "459-445",
number = "4",
volume = "53",
doi = "10.2298/SOS2104445T"
}

Terzić, A., Dojčinović, M., Miličić, L., Stojanović, J.,& Radojević, Z.. (2021). Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 53(4), 445-459.
https://doi.org/10.2298/SOS2104445T

Terzić A, Dojčinović M, Miličić L, Stojanović J, Radojević Z. Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering. 2021;53(4):445-459.
doi:10.2298/SOS2104445T .

Terzić, Anja, Dojčinović, Marina, Miličić, Ljiljana, Stojanović, Jovica, Radojević, Zagorka, "Cavitation Properties of Rendering Mortars with Micro Silica Addition" in Science of Sintering, 53, no. 4 (2021):445-459,
https://doi.org/10.2298/SOS2104445T . .

TY  - JOUR
AU  - Pezo, Lato
AU  - Pezo, Milada
AU  - Terzić, Anja
AU  - Jovanović, Aca P.
AU  - Lončar, Biljana
AU  - Govedarica, Dragan
AU  - Kojić, Predrag
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/408
AB  - The numerical model of the granular flow within an aggregate mixture, conducted in the vertical static and/or the conveyor blender, was explored using the discrete element method (DEM) approach. The blending quality of limestone fine aggregate fractions binary mixture for application in self-compacting concrete was studied. The potential of augmenting the conveyor mixer working efficiency by joining its operation to a Komax-type vertical static mixer, to increase the blending conduct was investigated. In addition the impact of the feed height on the flow field in the cone-shaped conveyor mixer was examined using the DEM simulation. Applying the numerical approach enabled a deeper insight into the quality of blending actions, while the relative standard deviation criteria ranked the uniformity of the mixture. The primary objective of this investigation was to examine the behavior of mixture for two types of blenders and to estimate the combined blending action of these two mixers, to explore the potential to augment the homogeneity of the aggregate fractions binary mixture, i.e., mixing quality, reduce the blending time and to abbreviate the energy-consuming.
PB  - MDPI, Basel
T2  - Processes
T1  - Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture
IS  - 11
VL  - 9
DO  - 10.3390/pr9111991
ER  - 

@article{
author = "Pezo, Lato and Pezo, Milada and Terzić, Anja and Jovanović, Aca P. and Lončar, Biljana and Govedarica, Dragan and Kojić, Predrag",
year = "2021",
abstract = "The numerical model of the granular flow within an aggregate mixture, conducted in the vertical static and/or the conveyor blender, was explored using the discrete element method (DEM) approach. The blending quality of limestone fine aggregate fractions binary mixture for application in self-compacting concrete was studied. The potential of augmenting the conveyor mixer working efficiency by joining its operation to a Komax-type vertical static mixer, to increase the blending conduct was investigated. In addition the impact of the feed height on the flow field in the cone-shaped conveyor mixer was examined using the DEM simulation. Applying the numerical approach enabled a deeper insight into the quality of blending actions, while the relative standard deviation criteria ranked the uniformity of the mixture. The primary objective of this investigation was to examine the behavior of mixture for two types of blenders and to estimate the combined blending action of these two mixers, to explore the potential to augment the homogeneity of the aggregate fractions binary mixture, i.e., mixing quality, reduce the blending time and to abbreviate the energy-consuming.",
publisher = "MDPI, Basel",
journal = "Processes",
title = "Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture",
number = "11",
volume = "9",
doi = "10.3390/pr9111991"
}

Pezo, L., Pezo, M., Terzić, A., Jovanović, A. P., Lončar, B., Govedarica, D.,& Kojić, P.. (2021). Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture. in Processes
MDPI, Basel., 9(11).
https://doi.org/10.3390/pr9111991

Pezo L, Pezo M, Terzić A, Jovanović AP, Lončar B, Govedarica D, Kojić P. Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture. in Processes. 2021;9(11).
doi:10.3390/pr9111991 .

Pezo, Lato, Pezo, Milada, Terzić, Anja, Jovanović, Aca P., Lončar, Biljana, Govedarica, Dragan, Kojić, Predrag, "Experimental and Discrete Element Model Investigation of Limestone Aggregate Blending Process in Vertical Static and/or Conveyor Mixer for Application in the Concrete Mixture" in Processes, 9, no. 11 (2021),
https://doi.org/10.3390/pr9111991 . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Miličić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/388
AB  - Prirodni zeolit i bentonit korišćeni su kao mineralni dodaci u mešavinskom dizajnu ekološki sigurnih građevinskih materijala na bazi cementa. Ispitane su adsorptivne sposobnosti ove dve glinene sirovine, tj. njihov afinitet da imobiliziraju jone teških metala Zn2+, Ni2+, Pb2+ i Cu2+. Za eksperiment su pripremljeni pojedinačni i multi-rastvori Zn2+, Ni2+, Pb2+ i Cu2+ . Dobijeni rezultati su analizirani pomoću kinetičkih modela pseudo prvog i pseudo drugog reda. Analizirane su izoterme Langmuira i Freundlicha. Bentonit je pokazao bolji adsorpcioni afinitet od zeolita prema sva četiri ispitivana katjona. Kao dokaz, ispitano je ispitivanje ispiranja na sedam različitih veziva za cement sa različitim mineralnim dodacima (leteći pepeo, zeolit, bentonit). Eluati dobijeni na uzorcima cementa sa dodatkom letećeg pepela i gline (bilo zeolita ili bentonita) sadržavale su niže koncentracije jona Zn2+, Ni2+, Pb2+ i Cu2+ u odnosu na eluat dobijen na uzorcima cementnog veziva sa letećim pepelom. Razlog za dobijanje ovakvih rezultata su adsorpcioni i hidratacioni mehanizmi koji imobiliziraju teške metale u cementnim kompozitima.
AB  - Natural zeolite and bentonite were utilized as mineral additives in the mix-design of environmentally safe cement-based building materials. The adsorptive abilities of these two clayey raw materials, i.e. their affinity to immobilize heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ were investigated. Singleand multi-solutions of Zn2+, Ni2+, Pb2+ and Cu2+ were prepared for the experiment. The obtained results were submitted to analysis via pseudo-first and pseudo-second order kinetic models. Langmuir and Freundlich isotherms were analyzed. Bentonite exhibited better adsorption affinity than zeolite towards all four investigated cations. As a proof, a leaching test was conducted on seven different cement binders with different mineral additives (fly ash, zeolite, bentonite). The leachates obtained on the samples of cement with addition of fly ash and clay (either zeolite or bentonite) contained lower concentrations of Zn2+, Ni2+, Pb2+ and Cu2+ ions than leachates obtained on the samples of cement binder with fly ash solely as a result of adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa
T1  - Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials
EP  - 127
IS  - 2
SP  - 116
VL  - 61
DO  - 10.5937/zasmat2002116M
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Miličić, Ljiljana and Živojinović, Dragana",
year = "2020",
abstract = "Prirodni zeolit i bentonit korišćeni su kao mineralni dodaci u mešavinskom dizajnu ekološki sigurnih građevinskih materijala na bazi cementa. Ispitane su adsorptivne sposobnosti ove dve glinene sirovine, tj. njihov afinitet da imobiliziraju jone teških metala Zn2+, Ni2+, Pb2+ i Cu2+. Za eksperiment su pripremljeni pojedinačni i multi-rastvori Zn2+, Ni2+, Pb2+ i Cu2+ . Dobijeni rezultati su analizirani pomoću kinetičkih modela pseudo prvog i pseudo drugog reda. Analizirane su izoterme Langmuira i Freundlicha. Bentonit je pokazao bolji adsorpcioni afinitet od zeolita prema sva četiri ispitivana katjona. Kao dokaz, ispitano je ispitivanje ispiranja na sedam različitih veziva za cement sa različitim mineralnim dodacima (leteći pepeo, zeolit, bentonit). Eluati dobijeni na uzorcima cementa sa dodatkom letećeg pepela i gline (bilo zeolita ili bentonita) sadržavale su niže koncentracije jona Zn2+, Ni2+, Pb2+ i Cu2+ u odnosu na eluat dobijen na uzorcima cementnog veziva sa letećim pepelom. Razlog za dobijanje ovakvih rezultata su adsorpcioni i hidratacioni mehanizmi koji imobiliziraju teške metale u cementnim kompozitima., Natural zeolite and bentonite were utilized as mineral additives in the mix-design of environmentally safe cement-based building materials. The adsorptive abilities of these two clayey raw materials, i.e. their affinity to immobilize heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ were investigated. Singleand multi-solutions of Zn2+, Ni2+, Pb2+ and Cu2+ were prepared for the experiment. The obtained results were submitted to analysis via pseudo-first and pseudo-second order kinetic models. Langmuir and Freundlich isotherms were analyzed. Bentonite exhibited better adsorption affinity than zeolite towards all four investigated cations. As a proof, a leaching test was conducted on seven different cement binders with different mineral additives (fly ash, zeolite, bentonite). The leachates obtained on the samples of cement with addition of fly ash and clay (either zeolite or bentonite) contained lower concentrations of Zn2+, Ni2+, Pb2+ and Cu2+ ions than leachates obtained on the samples of cement binder with fly ash solely as a result of adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa, Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials",
pages = "127-116",
number = "2",
volume = "61",
doi = "10.5937/zasmat2002116M"
}

Mijatović, N., Terzić, A., Miličić, L.,& Živojinović, D.. (2020). Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 61(2), 116-127.
https://doi.org/10.5937/zasmat2002116M

Mijatović N, Terzić A, Miličić L, Živojinović D. Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa. in Zaštita materijala. 2020;61(2):116-127.
doi:10.5937/zasmat2002116M .

Mijatović, Nevenka, Terzić, Anja, Miličić, Ljiljana, Živojinović, Dragana, "Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa" in Zaštita materijala, 61, no. 2 (2020):116-127,
https://doi.org/10.5937/zasmat2002116M . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Miličić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/377
AB  - A modification of an analytical procedure for the energy-dispersive X-ray fluorescence (EDXRF) quantification of ten chemical elements (As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb and Zn) in the leachates obtained from cement binders was developed. Twenty-nine testing samples were used in the experiment. All samples were based on Portland cement. Fly ash of different origin, zeolite and bentonite were employed as mineral additives in the cement binders. Distilled water was used as the leachate. Validation of the modified EDXRF procedure was conducted in terms of limits of detection and quantification, working range, linearity, selectivity, precision, trueness, and robustness. Traceability of the procedure was established using certified reference materials. Uncertainty of measurement was confirmed via an "in-house" laboratory validation approach. The expanded uncertainties for the ten analysed elements were obtained for the entire working range of the EDXRF method. Robustness of the modified EDXRF procedure was assessed by means of a chemometric in-house approach. The results obtained by the modified X-ray fluorescence method were additionally correlated to those acquired by inductively coupled plasma optical emission spectrometry to confirm that EDXRF could be used as an effective and reliable alternative method for analysis of cement leachates.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Improvement and modification of the energy-dispersive X-ray fluorescence method for the determination of metal elements in cement leachates - A chemometric approach
EP  - 1619
IS  - 12
SP  - 1605
VL  - 85
DO  - 10.2298/JSC200501067M
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Miličić, Ljiljana and Živojinović, Dragana",
year = "2020",
abstract = "A modification of an analytical procedure for the energy-dispersive X-ray fluorescence (EDXRF) quantification of ten chemical elements (As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb and Zn) in the leachates obtained from cement binders was developed. Twenty-nine testing samples were used in the experiment. All samples were based on Portland cement. Fly ash of different origin, zeolite and bentonite were employed as mineral additives in the cement binders. Distilled water was used as the leachate. Validation of the modified EDXRF procedure was conducted in terms of limits of detection and quantification, working range, linearity, selectivity, precision, trueness, and robustness. Traceability of the procedure was established using certified reference materials. Uncertainty of measurement was confirmed via an "in-house" laboratory validation approach. The expanded uncertainties for the ten analysed elements were obtained for the entire working range of the EDXRF method. Robustness of the modified EDXRF procedure was assessed by means of a chemometric in-house approach. The results obtained by the modified X-ray fluorescence method were additionally correlated to those acquired by inductively coupled plasma optical emission spectrometry to confirm that EDXRF could be used as an effective and reliable alternative method for analysis of cement leachates.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Improvement and modification of the energy-dispersive X-ray fluorescence method for the determination of metal elements in cement leachates - A chemometric approach",
pages = "1619-1605",
number = "12",
volume = "85",
doi = "10.2298/JSC200501067M"
}

Mijatović, N., Terzić, A., Pezo, L., Miličić, L.,& Živojinović, D.. (2020). Improvement and modification of the energy-dispersive X-ray fluorescence method for the determination of metal elements in cement leachates - A chemometric approach. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 85(12), 1605-1619.
https://doi.org/10.2298/JSC200501067M

Mijatović N, Terzić A, Pezo L, Miličić L, Živojinović D. Improvement and modification of the energy-dispersive X-ray fluorescence method for the determination of metal elements in cement leachates - A chemometric approach. in Journal of the Serbian Chemical Society. 2020;85(12):1605-1619.
doi:10.2298/JSC200501067M .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Miličić, Ljiljana, Živojinović, Dragana, "Improvement and modification of the energy-dispersive X-ray fluorescence method for the determination of metal elements in cement leachates - A chemometric approach" in Journal of the Serbian Chemical Society, 85, no. 12 (2020):1605-1619,
https://doi.org/10.2298/JSC200501067M . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Radulović, Dragan
AU  - Pezo, Milada
AU  - Stojanović, Jovica
AU  - Pezo, Lato
AU  - Radojević, Zagorka
AU  - Andrić, Ljubiša
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/393
AB  - The optimal outputs of pyrophyllite mechano-chemical activation in an ultra-centrifugal mill performing under different technological conditions were determined by analytical modeling and verified via Artificial Neural Network in order to be employed in the production of cement-based binders. Cluster Analysis and Principal Component Analysis were utilized in assessment of the effect of activation process parameters on the activated pyrophyllite quality. Artificial Neural Network which performed with high prediction accuracy, i.e. 0.914 during the training period, was sufficient for precise prediction of activated pyrophyllite quality in a wide range of processing parameters. The probability of utilization of observed activation products was estimated through interrelation of technological parameters (mesh size sieve, activation period, specific energy consumption) and acquired characteristics of pyrophyllite (grain diameter, specific surface area). The optimal products singled out from each activation sequence were used as mineral additives in the mix-designs of four cement binders (cement replacement portion was 30%). Influence of activated pyrophyllite additions on the cement chemistry, mineral phase compositions and microstructures of the cement binders were monitored by instrumental techniques (DTA/TGA, XRD, SEM). Activated pyrophyllite showed characteristics of pozzolana as it slightly accelerated early stages of hydration, decreased cement hydration energy and increased the quantity of cement mineral alite at later hydration stages. Micron-sized crystalline foila characteristic for mechanically activated pyrophyllite formed micro-reinforcement within cement binder microstructure.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders
VL  - 258
DO  - 10.1016/j.conbuildmat.2020.119721
ER  - 

@article{
author = "Terzić, Anja and Radulović, Dragan and Pezo, Milada and Stojanović, Jovica and Pezo, Lato and Radojević, Zagorka and Andrić, Ljubiša",
year = "2020",
abstract = "The optimal outputs of pyrophyllite mechano-chemical activation in an ultra-centrifugal mill performing under different technological conditions were determined by analytical modeling and verified via Artificial Neural Network in order to be employed in the production of cement-based binders. Cluster Analysis and Principal Component Analysis were utilized in assessment of the effect of activation process parameters on the activated pyrophyllite quality. Artificial Neural Network which performed with high prediction accuracy, i.e. 0.914 during the training period, was sufficient for precise prediction of activated pyrophyllite quality in a wide range of processing parameters. The probability of utilization of observed activation products was estimated through interrelation of technological parameters (mesh size sieve, activation period, specific energy consumption) and acquired characteristics of pyrophyllite (grain diameter, specific surface area). The optimal products singled out from each activation sequence were used as mineral additives in the mix-designs of four cement binders (cement replacement portion was 30%). Influence of activated pyrophyllite additions on the cement chemistry, mineral phase compositions and microstructures of the cement binders were monitored by instrumental techniques (DTA/TGA, XRD, SEM). Activated pyrophyllite showed characteristics of pozzolana as it slightly accelerated early stages of hydration, decreased cement hydration energy and increased the quantity of cement mineral alite at later hydration stages. Micron-sized crystalline foila characteristic for mechanically activated pyrophyllite formed micro-reinforcement within cement binder microstructure.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders",
volume = "258",
doi = "10.1016/j.conbuildmat.2020.119721"
}

Terzić, A., Radulović, D., Pezo, M., Stojanović, J., Pezo, L., Radojević, Z.,& Andrić, L.. (2020). Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 258.
https://doi.org/10.1016/j.conbuildmat.2020.119721

Terzić A, Radulović D, Pezo M, Stojanović J, Pezo L, Radojević Z, Andrić L. Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders. in Construction and Building Materials. 2020;258.
doi:10.1016/j.conbuildmat.2020.119721 .

Terzić, Anja, Radulović, Dragan, Pezo, Milada, Stojanović, Jovica, Pezo, Lato, Radojević, Zagorka, Andrić, Ljubiša, "Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders" in Construction and Building Materials, 258 (2020),
https://doi.org/10.1016/j.conbuildmat.2020.119721 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Stojanović, Jovica
AU  - Andrić, Ljubiša
AU  - Miličić, Ljiljana
AU  - Radojević, Zagorka
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/390
AB  - This experimental study was conducted with an aim to investigate the effect of the elevated temperature on the mineral phase composition, microstructure and mechanical properties of the thermal insulation lightweight concretes. The first group of experimental concretes was based on the expanded vermiculite and expanded perlite used as lightweight aggregates (in 65 wt%) in combination with either ordinary Portland cement or refractory calcium aluminate cement. The mix-design of the second group of concretes comprised standard quartz aggregate, vermiculite or perlite as aggregate replacement (25 wt%) and binder (PC or CAC). A total of 10 concrete mix-designs were fabricated in form of 40x40x160 mm samples which were submitted to heat-treatment at 400 degrees, 600 degrees, 800 degrees and 1000 degrees C upon standard 28-days period of curing and hardening. The changes in crystallinity and mineral phase composition induced by temperature were monitored by X-ray diffraction technique. Microstructural visualizations of the non-fired and fired concrete samples were conducted by scanning electron microscopy accompanied with EDX analysis. The results indicated that despite the decrease in compressive strengths upon firing, investigated lightweight concretes can be categorized both as thermal insulators and structural materials.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes
EP  - 162
IS  - 2
SP  - 149
VL  - 52
DO  - 10.2298/SOS2002149T
ER  - 

@article{
author = "Terzić, Anja and Stojanović, Jovica and Andrić, Ljubiša and Miličić, Ljiljana and Radojević, Zagorka",
year = "2020",
abstract = "This experimental study was conducted with an aim to investigate the effect of the elevated temperature on the mineral phase composition, microstructure and mechanical properties of the thermal insulation lightweight concretes. The first group of experimental concretes was based on the expanded vermiculite and expanded perlite used as lightweight aggregates (in 65 wt%) in combination with either ordinary Portland cement or refractory calcium aluminate cement. The mix-design of the second group of concretes comprised standard quartz aggregate, vermiculite or perlite as aggregate replacement (25 wt%) and binder (PC or CAC). A total of 10 concrete mix-designs were fabricated in form of 40x40x160 mm samples which were submitted to heat-treatment at 400 degrees, 600 degrees, 800 degrees and 1000 degrees C upon standard 28-days period of curing and hardening. The changes in crystallinity and mineral phase composition induced by temperature were monitored by X-ray diffraction technique. Microstructural visualizations of the non-fired and fired concrete samples were conducted by scanning electron microscopy accompanied with EDX analysis. The results indicated that despite the decrease in compressive strengths upon firing, investigated lightweight concretes can be categorized both as thermal insulators and structural materials.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes",
pages = "162-149",
number = "2",
volume = "52",
doi = "10.2298/SOS2002149T"
}

Terzić, A., Stojanović, J., Andrić, L., Miličić, L.,& Radojević, Z.. (2020). Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 52(2), 149-162.
https://doi.org/10.2298/SOS2002149T

Terzić A, Stojanović J, Andrić L, Miličić L, Radojević Z. Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes. in Science of Sintering. 2020;52(2):149-162.
doi:10.2298/SOS2002149T .

Terzić, Anja, Stojanović, Jovica, Andrić, Ljubiša, Miličić, Ljiljana, Radojević, Zagorka, "Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes" in Science of Sintering, 52, no. 2 (2020):149-162,
https://doi.org/10.2298/SOS2002149T . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Miličić, Ljiljana
AU  - Mijatović, Nevenka
AU  - Radojević, Zagorka
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/374
AB  - Mineral additives are extensively applied as cement replacement materials in both construction concrete and mortar. Fly ash is one of the most commonly utilized additives which improve Theological properties, as well as thermal and mechanical behavior of mortar, and as such it has been widely investigated. This industrial byproduct comprises heavy metals in its composition; therefore further research is needed to optimize its effective dosage. Moreover, certain sorptive clays, such as natural zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. Ten experimental mortars are prepared with Portland cement, river sand and addition of fly ash, zeolite and/or bentonite in accordance with chemometric experimental design rules. The aim of the study was to investigate the effect of mineral additives on thermal and mechanical performances of mortar. Thermal characteristics were monitored via dilatometric analysis and DTA method. Principal component analysis was used on the results of physico-mechanical testing (workability, bulk density, water absorption, shrinkage, compressive and flexural strength) to enable the divisions of the observed samples into groups in the factor space. The performance of Artificial Neural Network was compared with the experimental data in order to develop rapid and accurate method for prediction of mechanical parameters of mortar. The ANN model showed high overall prediction accuracy (r(2) = 0.989, during training cycle). The test results indicate that incorporation of the mineral additives gave cost effective mortars with sufficiently good properties. However, tools of analytical modeling highlighted mortar with zeolite and fly ash as the optimal composition regarding its mechanical performance.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash
EP  - 56
IS  - 1
SP  - 39
VL  - 51
DO  - 10.2298/SOS1901039T
ER  - 

@article{
author = "Terzić, Anja and Pezo, Lato and Miličić, Ljiljana and Mijatović, Nevenka and Radojević, Zagorka and Radulović, Dragan and Andrić, Ljubiša",
year = "2019",
abstract = "Mineral additives are extensively applied as cement replacement materials in both construction concrete and mortar. Fly ash is one of the most commonly utilized additives which improve Theological properties, as well as thermal and mechanical behavior of mortar, and as such it has been widely investigated. This industrial byproduct comprises heavy metals in its composition; therefore further research is needed to optimize its effective dosage. Moreover, certain sorptive clays, such as natural zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. Ten experimental mortars are prepared with Portland cement, river sand and addition of fly ash, zeolite and/or bentonite in accordance with chemometric experimental design rules. The aim of the study was to investigate the effect of mineral additives on thermal and mechanical performances of mortar. Thermal characteristics were monitored via dilatometric analysis and DTA method. Principal component analysis was used on the results of physico-mechanical testing (workability, bulk density, water absorption, shrinkage, compressive and flexural strength) to enable the divisions of the observed samples into groups in the factor space. The performance of Artificial Neural Network was compared with the experimental data in order to develop rapid and accurate method for prediction of mechanical parameters of mortar. The ANN model showed high overall prediction accuracy (r(2) = 0.989, during training cycle). The test results indicate that incorporation of the mineral additives gave cost effective mortars with sufficiently good properties. However, tools of analytical modeling highlighted mortar with zeolite and fly ash as the optimal composition regarding its mechanical performance.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash",
pages = "56-39",
number = "1",
volume = "51",
doi = "10.2298/SOS1901039T"
}

Terzić, A., Pezo, L., Miličić, L., Mijatović, N., Radojević, Z., Radulović, D.,& Andrić, L.. (2019). Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(1), 39-56.
https://doi.org/10.2298/SOS1901039T

Terzić A, Pezo L, Miličić L, Mijatović N, Radojević Z, Radulović D, Andrić L. Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash. in Science of Sintering. 2019;51(1):39-56.
doi:10.2298/SOS1901039T .

Terzić, Anja, Pezo, Lato, Miličić, Ljiljana, Mijatović, Nevenka, Radojević, Zagorka, Radulović, Dragan, Andrić, Ljubiša, "Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash" in Science of Sintering, 51, no. 1 (2019):39-56,
https://doi.org/10.2298/SOS1901039T . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Miličić, Ljiljana
AU  - Milosavljević, Aleksandra
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/369
AB  - New global tendencies for waste materials reusing in building materials are imposing the request for improved performances of chemical analysis methods and the improvements of matrices used. A new method for optical emission spectrometry with inductively coupled plasma (ICP-OES) is developed and validated for the chemical analysis (35 elements: Al, Be, Cd, So, Cr, Cu, Fe, Mn, Mo, Ni, V, Mo, Zn, Pb , Bi, Si, Zr, W, As, Se, Sb, Sn, Ti, Ba, B, Ag, Mg, Ca, K, Na, S, P, Ga, In, Li) in leachate of fly ash. Validation performances and the uncertainty of measurement were resolved. Uncertainty of measurements were resolved by three routes: validation procedure, participation in proficiency testing (PT) schemes and standard method. The obtained method is a new simple and effective analyzing route for determination of undesired trace elements and their quantity comprised in leachates of fly ash, and leachates of building materials with addition of fly ash (cement binders and mortars). In order to prove its accuracy and precision, the developed method was employed on laboratory samples of cement binders and mortars. Results were compared with limit values provided in the standard. Multivariate analyses, i.e. cluster analysis and principal component analysis, were applied to establish interrelations between analyzed samples, and to certify the developed ICP-OES method.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Novel Approach for Determination of Potentially Toxic Elements via ICP-OES in Aqueous Solutions of Building Materials with Industrial Byproduct Addition
EP  - 444
IS  - 4
SP  - 429
VL  - 51
DO  - 10.2298/SOS1904429M
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Miličić, Ljiljana and Milosavljević, Aleksandra and Živojinović, Dragana",
year = "2019",
abstract = "New global tendencies for waste materials reusing in building materials are imposing the request for improved performances of chemical analysis methods and the improvements of matrices used. A new method for optical emission spectrometry with inductively coupled plasma (ICP-OES) is developed and validated for the chemical analysis (35 elements: Al, Be, Cd, So, Cr, Cu, Fe, Mn, Mo, Ni, V, Mo, Zn, Pb , Bi, Si, Zr, W, As, Se, Sb, Sn, Ti, Ba, B, Ag, Mg, Ca, K, Na, S, P, Ga, In, Li) in leachate of fly ash. Validation performances and the uncertainty of measurement were resolved. Uncertainty of measurements were resolved by three routes: validation procedure, participation in proficiency testing (PT) schemes and standard method. The obtained method is a new simple and effective analyzing route for determination of undesired trace elements and their quantity comprised in leachates of fly ash, and leachates of building materials with addition of fly ash (cement binders and mortars). In order to prove its accuracy and precision, the developed method was employed on laboratory samples of cement binders and mortars. Results were compared with limit values provided in the standard. Multivariate analyses, i.e. cluster analysis and principal component analysis, were applied to establish interrelations between analyzed samples, and to certify the developed ICP-OES method.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Novel Approach for Determination of Potentially Toxic Elements via ICP-OES in Aqueous Solutions of Building Materials with Industrial Byproduct Addition",
pages = "444-429",
number = "4",
volume = "51",
doi = "10.2298/SOS1904429M"
}

Mijatović, N., Terzić, A., Pezo, L., Miličić, L., Milosavljević, A.,& Živojinović, D.. (2019). Novel Approach for Determination of Potentially Toxic Elements via ICP-OES in Aqueous Solutions of Building Materials with Industrial Byproduct Addition. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(4), 429-444.
https://doi.org/10.2298/SOS1904429M

Mijatović N, Terzić A, Pezo L, Miličić L, Milosavljević A, Živojinović D. Novel Approach for Determination of Potentially Toxic Elements via ICP-OES in Aqueous Solutions of Building Materials with Industrial Byproduct Addition. in Science of Sintering. 2019;51(4):429-444.
doi:10.2298/SOS1904429M .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Miličić, Ljiljana, Milosavljević, Aleksandra, Živojinović, Dragana, "Novel Approach for Determination of Potentially Toxic Elements via ICP-OES in Aqueous Solutions of Building Materials with Industrial Byproduct Addition" in Science of Sintering, 51, no. 4 (2019):429-444,
https://doi.org/10.2298/SOS1904429M . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Miličić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/363
AB  - Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (approximate to 1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part B-Atomic Spectroscopy
T1  - Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites
VL  - 162
DO  - 10.1016/j.sab.2019.105729
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Miličić, Ljiljana and Živojinović, Dragana",
year = "2019",
abstract = "Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (approximate to 1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part B-Atomic Spectroscopy",
title = "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites",
volume = "162",
doi = "10.1016/j.sab.2019.105729"
}

Mijatović, N., Terzić, A., Pezo, L., Miličić, L.,& Živojinović, D.. (2019). Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta Part B-Atomic Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 162.
https://doi.org/10.1016/j.sab.2019.105729

Mijatović N, Terzić A, Pezo L, Miličić L, Živojinović D. Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta Part B-Atomic Spectroscopy. 2019;162.
doi:10.1016/j.sab.2019.105729 .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Miličić, Ljiljana, Živojinović, Dragana, "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites" in Spectrochimica Acta Part B-Atomic Spectroscopy, 162 (2019),
https://doi.org/10.1016/j.sab.2019.105729 . .

TY  - CHAP
AU  - Terzić, Anja
AU  - Pezo, Lato
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/359
AB  - The effectiveness of employment of mechano-chemical activation in the production of high temperature ceramic coating materials was assessed. The properties of mineral fillers are directly dependant on the choice of activation variables. Mathematical modeling was employed for optimization of ultra-centrifugal pulverization and determination of optimal characteristics of investigated materials. The properties of treated resources were mathematically correlated to the variations in their granulometry. The dependencies between the set of the activation parameters and characteristics of a material were mathematically modeled and estimated. Chemometric methods were employed in the calculations. The samples are classified by Principal Component Analysis, while comprehensive comparison between analyzed samples was achieved by Response Surface Method and Standard Score. Mathematical models predict the quality parameters of activated powders with high accuracy in a broad range of processing parameters. The r2 values were in the range from 0.71 to 0.98 for established models for processing of talc, mica, fly ash and alumina powders. The set of processing parameters related to the 120 Μm sieve mesh size was selected as optimal procedure with acquired standard score values 0.7 for mica, 1.0 for talc, 0.9 for fly ash and alumina. Optimal processing parameters can diminish the negative effect of raw materials inherent properties on the target score, which in return enhances energetic and economic sustainability of the mechano-chemical activation of resource materials utilized in the production of ceramic coating materials.
PB  - Wiley
T2  - Photoenergy and Thin Film Materials
T1  - Assessment of the effectiveness of producing mineral fillers via pulverization for ceramic coating materials
EP  - 562
SP  - 537
DO  - 10.1002/9781119580546.ch13
ER  - 

@inbook{
author = "Terzić, Anja and Pezo, Lato",
year = "2019",
abstract = "The effectiveness of employment of mechano-chemical activation in the production of high temperature ceramic coating materials was assessed. The properties of mineral fillers are directly dependant on the choice of activation variables. Mathematical modeling was employed for optimization of ultra-centrifugal pulverization and determination of optimal characteristics of investigated materials. The properties of treated resources were mathematically correlated to the variations in their granulometry. The dependencies between the set of the activation parameters and characteristics of a material were mathematically modeled and estimated. Chemometric methods were employed in the calculations. The samples are classified by Principal Component Analysis, while comprehensive comparison between analyzed samples was achieved by Response Surface Method and Standard Score. Mathematical models predict the quality parameters of activated powders with high accuracy in a broad range of processing parameters. The r2 values were in the range from 0.71 to 0.98 for established models for processing of talc, mica, fly ash and alumina powders. The set of processing parameters related to the 120 Μm sieve mesh size was selected as optimal procedure with acquired standard score values 0.7 for mica, 1.0 for talc, 0.9 for fly ash and alumina. Optimal processing parameters can diminish the negative effect of raw materials inherent properties on the target score, which in return enhances energetic and economic sustainability of the mechano-chemical activation of resource materials utilized in the production of ceramic coating materials.",
publisher = "Wiley",
journal = "Photoenergy and Thin Film Materials",
booktitle = "Assessment of the effectiveness of producing mineral fillers via pulverization for ceramic coating materials",
pages = "562-537",
doi = "10.1002/9781119580546.ch13"
}

Terzić, A.,& Pezo, L.. (2019). Assessment of the effectiveness of producing mineral fillers via pulverization for ceramic coating materials. in Photoenergy and Thin Film Materials
Wiley., 537-562.
https://doi.org/10.1002/9781119580546.ch13

Terzić A, Pezo L. Assessment of the effectiveness of producing mineral fillers via pulverization for ceramic coating materials. in Photoenergy and Thin Film Materials. 2019;:537-562.
doi:10.1002/9781119580546.ch13 .

Terzić, Anja, Pezo, Lato, "Assessment of the effectiveness of producing mineral fillers via pulverization for ceramic coating materials" in Photoenergy and Thin Film Materials (2019):537-562,
https://doi.org/10.1002/9781119580546.ch13 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Kosanović, Darko
AU  - Stojanović, Jovica
AU  - Đorđević, Antonije
AU  - Andrić, Ljubiša
AU  - Pavlović, Vladimir
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/373
AB  - Steatite, as ceramic with composition predominantly resting on magnesium silicate, was produced from economic resources - talc, aluminosilicate clays, and either BaCO3 or feldspar as flux. Titanium dioxide was a doping agent. Four steatite mixtures were mechanically activated in a planetary ball mill for 30, 45 or 60 min, prior to the thermal treatment. Two-step sintering with initial phase set at 1350 degrees C and holding period conducted at 1250 degrees C was applied to initiate diffusion and prevent grain growth. Thereby, a high density ceramic material with low-porous submicron structure was acquired. The effects of TiO2 addition on densification, microstructure, and dielectric characteristics of steatites were monitored. The thermal stability of green mixtures was tested by differential thermal and thermogravimetric analyses. Changes in crystallinity and mineral phase composition were observed by the X-ray diffraction technique. Microstructural visualization with spatial arrangements of individual chemical elements on surface of the sintered ceramics was acquired by scanning electron microscopy accompanied with EDS mapping. In order to test the possibility of employment of the obtained steatites in insulation materials, electrical measurements were conducted by recording variations of the dielectric constant and loss tangent as a function of alternations in the mix-design and the mechanical activation period.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics
EP  - 3022
IS  - 3
SP  - 3013
VL  - 45
DO  - 10.1016/j.ceramint.2018.10.120
ER  - 

@article{
author = "Terzić, Anja and Obradović, Nina and Kosanović, Darko and Stojanović, Jovica and Đorđević, Antonije and Andrić, Ljubiša and Pavlović, Vladimir",
year = "2019",
abstract = "Steatite, as ceramic with composition predominantly resting on magnesium silicate, was produced from economic resources - talc, aluminosilicate clays, and either BaCO3 or feldspar as flux. Titanium dioxide was a doping agent. Four steatite mixtures were mechanically activated in a planetary ball mill for 30, 45 or 60 min, prior to the thermal treatment. Two-step sintering with initial phase set at 1350 degrees C and holding period conducted at 1250 degrees C was applied to initiate diffusion and prevent grain growth. Thereby, a high density ceramic material with low-porous submicron structure was acquired. The effects of TiO2 addition on densification, microstructure, and dielectric characteristics of steatites were monitored. The thermal stability of green mixtures was tested by differential thermal and thermogravimetric analyses. Changes in crystallinity and mineral phase composition were observed by the X-ray diffraction technique. Microstructural visualization with spatial arrangements of individual chemical elements on surface of the sintered ceramics was acquired by scanning electron microscopy accompanied with EDS mapping. In order to test the possibility of employment of the obtained steatites in insulation materials, electrical measurements were conducted by recording variations of the dielectric constant and loss tangent as a function of alternations in the mix-design and the mechanical activation period.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics",
pages = "3022-3013",
number = "3",
volume = "45",
doi = "10.1016/j.ceramint.2018.10.120"
}

Terzić, A., Obradović, N., Kosanović, D., Stojanović, J., Đorđević, A., Andrić, L.,& Pavlović, V.. (2019). Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(3), 3013-3022.
https://doi.org/10.1016/j.ceramint.2018.10.120

Terzić A, Obradović N, Kosanović D, Stojanović J, Đorđević A, Andrić L, Pavlović V. Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics. in Ceramics International. 2019;45(3):3013-3022.
doi:10.1016/j.ceramint.2018.10.120 .

Terzić, Anja, Obradović, Nina, Kosanović, Darko, Stojanović, Jovica, Đorđević, Antonije, Andrić, Ljubiša, Pavlović, Vladimir, "Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics" in Ceramics International, 45, no. 3 (2019):3013-3022,
https://doi.org/10.1016/j.ceramint.2018.10.120 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Mijatović, Nevenka
AU  - Miličić, Ljiljana
AU  - Radojević, Zagorka
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/348
AB  - Mineralni dodaci se ekstenzivno koriste kao zamena za cement u građevinskim betonima i malterima. Leteći pepeo je jedan od najčešće primenjivanih dodataka koji unapređuje reološka, mehanička i termička svojstva materijala. Međutim, ovaj industrijski nusprodukat sadrži teške metale zbog čega je neophodna optimizacija njegove dozaže pri dizajnu maltera. Glineni materiali kao što su zeolit i bentonit svojim sorpcionim mehanizmima mogu da preduprede migraciju toksičnih elemenata iz pepela imobilišući ih unutar strukture. U ovom radu eksperimentalno su ispitana tri različita maltera pripremljena na bazi Portland cementa, rečnog peska i kombinacije mineralnih dodataka - letećeg pepela, zeolita i bentonita. Malter M1 sadržao je sva tri dodatka u odnosu 1:1:1, malter M2 je sadržao zeolit i bentonit u odnosu 1:2, dok je odnos zeolita i bentonita u malteru M3 bio 2:1. Cilj istraživanja je bio da se ispita uticaj mineralnih dodataka na fizičko-hemijska, termička i mehanička svojstva maltera. Primenjene su instrumentalne metode - X-ray difrakcija, diferencijalno termijska i dilatometrijska analiza i FTIR spektroskopija. Rezultati istraživanja su ukazali da se primenom ovih mineralnih dodataka mogu dobiti ekonomični malteri sa dovoljno dobrim performansama.
AB  - Mineral additives are extensively applied as cement replacements in building concretes and mortars. Fly ash is one of the most commonly used additives which enhance rheological, mechanical and thermal properties of material. However, this industrial byproduct comprises heavy metals; therefore the optimization of its effective dosage is necessary. Clayey materials, such as zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. In this paper, three experimental mortars where designed, prepared and investigated. Mortars were based on Portland cement, river sand and mineral additive - fly ash, zeolite and bentonite. Mortar M1 comprised all three additives used in 1:1:1 ratio, mortar M2 contained zeolite and bentonite in 1:2 ratio, while ratio of zeolite and bentonite in M3 mortar was 2:1. The aim of the study was to investigate the effect of mineral additives on physico-chemical, thermal and mechanical performances of mortar. X-ray diffraction, DTA, dilatometry and FRIR analyses were applied on mortar samples. The results of the investigation highlighted that economical mortar with good properties can be obtained by application of these mineral additives.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Svojstva i performanse maltera sa dodatkom primarnih i sekundarnih mineralnih sirovina u cilju zamene cementnog veziva
T1  - Properties and performances of mortars with primary and secondary mineral additives applied as cement replacement
EP  - 476
IS  - 4
SP  - 470
VL  - 73
DO  - 10.5937/tehnika1804470T
ER  - 

@article{
author = "Terzić, Anja and Mijatović, Nevenka and Miličić, Ljiljana and Radojević, Zagorka",
year = "2018",
abstract = "Mineralni dodaci se ekstenzivno koriste kao zamena za cement u građevinskim betonima i malterima. Leteći pepeo je jedan od najčešće primenjivanih dodataka koji unapređuje reološka, mehanička i termička svojstva materijala. Međutim, ovaj industrijski nusprodukat sadrži teške metale zbog čega je neophodna optimizacija njegove dozaže pri dizajnu maltera. Glineni materiali kao što su zeolit i bentonit svojim sorpcionim mehanizmima mogu da preduprede migraciju toksičnih elemenata iz pepela imobilišući ih unutar strukture. U ovom radu eksperimentalno su ispitana tri različita maltera pripremljena na bazi Portland cementa, rečnog peska i kombinacije mineralnih dodataka - letećeg pepela, zeolita i bentonita. Malter M1 sadržao je sva tri dodatka u odnosu 1:1:1, malter M2 je sadržao zeolit i bentonit u odnosu 1:2, dok je odnos zeolita i bentonita u malteru M3 bio 2:1. Cilj istraživanja je bio da se ispita uticaj mineralnih dodataka na fizičko-hemijska, termička i mehanička svojstva maltera. Primenjene su instrumentalne metode - X-ray difrakcija, diferencijalno termijska i dilatometrijska analiza i FTIR spektroskopija. Rezultati istraživanja su ukazali da se primenom ovih mineralnih dodataka mogu dobiti ekonomični malteri sa dovoljno dobrim performansama., Mineral additives are extensively applied as cement replacements in building concretes and mortars. Fly ash is one of the most commonly used additives which enhance rheological, mechanical and thermal properties of material. However, this industrial byproduct comprises heavy metals; therefore the optimization of its effective dosage is necessary. Clayey materials, such as zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. In this paper, three experimental mortars where designed, prepared and investigated. Mortars were based on Portland cement, river sand and mineral additive - fly ash, zeolite and bentonite. Mortar M1 comprised all three additives used in 1:1:1 ratio, mortar M2 contained zeolite and bentonite in 1:2 ratio, while ratio of zeolite and bentonite in M3 mortar was 2:1. The aim of the study was to investigate the effect of mineral additives on physico-chemical, thermal and mechanical performances of mortar. X-ray diffraction, DTA, dilatometry and FRIR analyses were applied on mortar samples. The results of the investigation highlighted that economical mortar with good properties can be obtained by application of these mineral additives.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Svojstva i performanse maltera sa dodatkom primarnih i sekundarnih mineralnih sirovina u cilju zamene cementnog veziva, Properties and performances of mortars with primary and secondary mineral additives applied as cement replacement",
pages = "476-470",
number = "4",
volume = "73",
doi = "10.5937/tehnika1804470T"
}

Terzić, A., Mijatović, N., Miličić, L.,& Radojević, Z.. (2018). Svojstva i performanse maltera sa dodatkom primarnih i sekundarnih mineralnih sirovina u cilju zamene cementnog veziva. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(4), 470-476.
https://doi.org/10.5937/tehnika1804470T

Terzić A, Mijatović N, Miličić L, Radojević Z. Svojstva i performanse maltera sa dodatkom primarnih i sekundarnih mineralnih sirovina u cilju zamene cementnog veziva. in Tehnika. 2018;73(4):470-476.
doi:10.5937/tehnika1804470T .

Terzić, Anja, Mijatović, Nevenka, Miličić, Ljiljana, Radojević, Zagorka, "Svojstva i performanse maltera sa dodatkom primarnih i sekundarnih mineralnih sirovina u cilju zamene cementnog veziva" in Tehnika, 73, no. 4 (2018):470-476,
https://doi.org/10.5937/tehnika1804470T . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Mijatović, Nevenka
AU  - Stojanović, Jovica
AU  - Kragović, Milan
AU  - Miličić, Ljiljana
AU  - Andrić, Ljubiša
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/345
AB  - Instrumental analyses accompanied by analytical modeling tools were employed to assess physico-chemical changes induced by variations in chemical composition of cementitious composites, i.e. mortar binders. Coal combustion ash was utilized as pozzolanic mineral additive. The binders' mix-design was supplemented with sorptive clays to prevent migration of toxic elements from fly ash. The experiment was established on the premise of clay's ion-exchanging ability. Ten binders comprising cement CEM I 42.5 and fly ash, zeolite and/or bentonite additions were prepared in accordance with chemometric experimental design rules. Chemical composition was determined via XRF method. The changes in mineral phases and crystallinity were traced by X-ray diffraction. Hydration mechanisms and thermal behavior were investigated via DTA/TGA. The chemical bonds were identified by FTIR. Morphology of hardened samples was detected by SEM. Mathematical tools employed data sets of instrumental analyses to form a clear differentiation between binders and to assess changes caused by adoption of mineral additives in the mix designs. Sorptive clays showed pozzolanic behavior, thereby causing no incapacitation to the cement hydration mechanism, and classifying as a possible economical resources which can be used in production technology of construction materials to redeem environmental pollution issues of building industry.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders
EP  - 210
SP  - 199
VL  - 180
DO  - 10.1016/j.conbuildmat.2018.06.007
ER  - 

@article{
author = "Terzić, Anja and Pezo, Lato and Mijatović, Nevenka and Stojanović, Jovica and Kragović, Milan and Miličić, Ljiljana and Andrić, Ljubiša",
year = "2018",
abstract = "Instrumental analyses accompanied by analytical modeling tools were employed to assess physico-chemical changes induced by variations in chemical composition of cementitious composites, i.e. mortar binders. Coal combustion ash was utilized as pozzolanic mineral additive. The binders' mix-design was supplemented with sorptive clays to prevent migration of toxic elements from fly ash. The experiment was established on the premise of clay's ion-exchanging ability. Ten binders comprising cement CEM I 42.5 and fly ash, zeolite and/or bentonite additions were prepared in accordance with chemometric experimental design rules. Chemical composition was determined via XRF method. The changes in mineral phases and crystallinity were traced by X-ray diffraction. Hydration mechanisms and thermal behavior were investigated via DTA/TGA. The chemical bonds were identified by FTIR. Morphology of hardened samples was detected by SEM. Mathematical tools employed data sets of instrumental analyses to form a clear differentiation between binders and to assess changes caused by adoption of mineral additives in the mix designs. Sorptive clays showed pozzolanic behavior, thereby causing no incapacitation to the cement hydration mechanism, and classifying as a possible economical resources which can be used in production technology of construction materials to redeem environmental pollution issues of building industry.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders",
pages = "210-199",
volume = "180",
doi = "10.1016/j.conbuildmat.2018.06.007"
}

Terzić, A., Pezo, L., Mijatović, N., Stojanović, J., Kragović, M., Miličić, L.,& Andrić, L.. (2018). The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 180, 199-210.
https://doi.org/10.1016/j.conbuildmat.2018.06.007

Terzić A, Pezo L, Mijatović N, Stojanović J, Kragović M, Miličić L, Andrić L. The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders. in Construction and Building Materials. 2018;180:199-210.
doi:10.1016/j.conbuildmat.2018.06.007 .

Terzić, Anja, Pezo, Lato, Mijatović, Nevenka, Stojanović, Jovica, Kragović, Milan, Miličić, Ljiljana, Andrić, Ljubiša, "The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders" in Construction and Building Materials, 180 (2018):199-210,
https://doi.org/10.1016/j.conbuildmat.2018.06.007 . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Pezo, Lato
AU  - Terzić, Anja
AU  - Šerbula, Snežana
AU  - Kovačević, Renata
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/335
AB  - Fokus ove studije je na biometrijsku klasifikaciju biljaka, biljnih organa, lokaliteta i vremena uzorkovanja, u smislu praćenja stepena usvajanja toksičanih (As, Cd, Hg i Pb) i esencijalnih elemenata (Cu i Zn), i mogućnost primene u fito-remedijaciji. Stepen usvajanja elemenata zavisi od biljne vrste i njenih morfoloških i fizioloških osobina. Usvajanje toksičnih i esencijalnih elemenata u ovom radu je praćeno kod tri vrste biljaka (podbel, maslačak i kopriva). Uzorkovanje biljaka i zemljišta je vršeno u priobalnom regionu Kriveljske reke, Srbija. Analiza glavnih komponenti i analiza varijanse su korišćene za procenu efekasnosti usvajanja toksičnih i esencijalnih elemenata kod pomenutih biljnih vrsta, biljnih organa (korena, stabla i lišća), lokaliteta i vremena uzorkovanja (april, maj, jun). Dobijeni rezultati su pokazali da je razlika u usvajanju toksičnih i esencijalnih elemenata najviše zavisi od sorte i tipova biljnih organa. Biometrijske tehnike pružaju mogućnost za bolje razumevanje ponašanja biljaka i dobijanja mnogo korisnih informacija iz izvornih podataka.
AB  - The focus of this study is on the biometric classification of plants, plant organs, sampling sites and sampling time, in terms of toxic (As, Cd, Hg and Pb) and essential elements (Cu and Zn) monitoring, and possible the application in phyto-remediation. The degree of adoption of elements depends on the plant species and its morphological and physiological properties, therefore the adoption of toxic and essential elements in three plant species (coltsfoot, dandelion and nettles) was investigated. Vegetation experiments were carried out in the coastal region of river Kriveljska, Serbia. Principal component analysis and analysis of variance were used for assessing the effect of plant types, plant organs (root, shoot and leaves), and sampling sites and sampling time (April, May, June) on toxic and essential elements uptake. Obtained results showed that a difference in toxic and essential elements uptake depends mostly upon the cultivar and the plant organ types. Biometric techniques provided a good opportunity for a better understanding the behaviour of plants and obtaining much more useful information from the original data.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Biometrijske tehnike za ocenu stepena usvajanja toksičnih i esencijalnih elemenata
T1  - The biometrics techniques for the assessment of the degree of adoption of toxic and essential elements
EP  - 66
IS  - 1
SP  - 56
VL  - 59
DO  - 10.5937/ZasMat1801057M
ER  - 

@article{
author = "Mijatović, Nevenka and Pezo, Lato and Terzić, Anja and Šerbula, Snežana and Kovačević, Renata",
year = "2018",
abstract = "Fokus ove studije je na biometrijsku klasifikaciju biljaka, biljnih organa, lokaliteta i vremena uzorkovanja, u smislu praćenja stepena usvajanja toksičanih (As, Cd, Hg i Pb) i esencijalnih elemenata (Cu i Zn), i mogućnost primene u fito-remedijaciji. Stepen usvajanja elemenata zavisi od biljne vrste i njenih morfoloških i fizioloških osobina. Usvajanje toksičnih i esencijalnih elemenata u ovom radu je praćeno kod tri vrste biljaka (podbel, maslačak i kopriva). Uzorkovanje biljaka i zemljišta je vršeno u priobalnom regionu Kriveljske reke, Srbija. Analiza glavnih komponenti i analiza varijanse su korišćene za procenu efekasnosti usvajanja toksičnih i esencijalnih elemenata kod pomenutih biljnih vrsta, biljnih organa (korena, stabla i lišća), lokaliteta i vremena uzorkovanja (april, maj, jun). Dobijeni rezultati su pokazali da je razlika u usvajanju toksičnih i esencijalnih elemenata najviše zavisi od sorte i tipova biljnih organa. Biometrijske tehnike pružaju mogućnost za bolje razumevanje ponašanja biljaka i dobijanja mnogo korisnih informacija iz izvornih podataka., The focus of this study is on the biometric classification of plants, plant organs, sampling sites and sampling time, in terms of toxic (As, Cd, Hg and Pb) and essential elements (Cu and Zn) monitoring, and possible the application in phyto-remediation. The degree of adoption of elements depends on the plant species and its morphological and physiological properties, therefore the adoption of toxic and essential elements in three plant species (coltsfoot, dandelion and nettles) was investigated. Vegetation experiments were carried out in the coastal region of river Kriveljska, Serbia. Principal component analysis and analysis of variance were used for assessing the effect of plant types, plant organs (root, shoot and leaves), and sampling sites and sampling time (April, May, June) on toxic and essential elements uptake. Obtained results showed that a difference in toxic and essential elements uptake depends mostly upon the cultivar and the plant organ types. Biometric techniques provided a good opportunity for a better understanding the behaviour of plants and obtaining much more useful information from the original data.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Biometrijske tehnike za ocenu stepena usvajanja toksičnih i esencijalnih elemenata, The biometrics techniques for the assessment of the degree of adoption of toxic and essential elements",
pages = "66-56",
number = "1",
volume = "59",
doi = "10.5937/ZasMat1801057M"
}

Mijatović, N., Pezo, L., Terzić, A., Šerbula, S.,& Kovačević, R.. (2018). Biometrijske tehnike za ocenu stepena usvajanja toksičnih i esencijalnih elemenata. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 59(1), 56-66.
https://doi.org/10.5937/ZasMat1801057M

Mijatović N, Pezo L, Terzić A, Šerbula S, Kovačević R. Biometrijske tehnike za ocenu stepena usvajanja toksičnih i esencijalnih elemenata. in Zaštita materijala. 2018;59(1):56-66.
doi:10.5937/ZasMat1801057M .

Mijatović, Nevenka, Pezo, Lato, Terzić, Anja, Šerbula, Snežana, Kovačević, Renata, "Biometrijske tehnike za ocenu stepena usvajanja toksičnih i esencijalnih elemenata" in Zaštita materijala, 59, no. 1 (2018):56-66,
https://doi.org/10.5937/ZasMat1801057M . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Pouchly, Vaclav
AU  - Stojanović, Jovica
AU  - Maca, Karel
AU  - Pavlović, Vladimir
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/340
AB  - The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200 degrees C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100 degrees C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800 degrees C/1 min or 1000 degrees C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000 degrees C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering
EP  - 312
IS  - 3
SP  - 299
VL  - 50
DO  - 10.2298/SOS1803299T
ER  - 

@article{
author = "Terzić, Anja and Obradović, Nina and Pouchly, Vaclav and Stojanović, Jovica and Maca, Karel and Pavlović, Vladimir",
year = "2018",
abstract = "The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200 degrees C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100 degrees C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800 degrees C/1 min or 1000 degrees C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000 degrees C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering",
pages = "312-299",
number = "3",
volume = "50",
doi = "10.2298/SOS1803299T"
}

Terzić, A., Obradović, N., Pouchly, V., Stojanović, J., Maca, K.,& Pavlović, V.. (2018). Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(3), 299-312.
https://doi.org/10.2298/SOS1803299T

Terzić A, Obradović N, Pouchly V, Stojanović J, Maca K, Pavlović V. Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering. in Science of Sintering. 2018;50(3):299-312.
doi:10.2298/SOS1803299T .

Terzić, Anja, Obradović, Nina, Pouchly, Vaclav, Stojanović, Jovica, Maca, Karel, Pavlović, Vladimir, "Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering" in Science of Sintering, 50, no. 3 (2018):299-312,
https://doi.org/10.2298/SOS1803299T . .

TY  - JOUR
AU  - Pezo, Milada
AU  - Pezo, Lato
AU  - Jovanović, Aca P.
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Lončar, Biljana
AU  - Kojić, Predrag
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/353
AB  - In this paper, five types of horizontal single-pitch screw conveyors with modified geometry, with three different lengths (400, 600 and 800 mm) were investigated for transport and auxiliary mixing action of two materials: natural zeolite and quartz aggregate (sand) with particle sizes 3, 4 and 5 mm. The geometry of the screw transporter is changed by welding three additional helices oriented in the same or the opposite direction from screw cutting edges, enabling the premixing of materials, during the transport. The proper mixing of the observed materials provides an adequate disposition of zeolite particles within the composite and prevents agglomeration and interference with cement hydration. Zeolite application as a binder in a building material is a possible solution to environmental pollution problems caused by cement production. The influences of screw length, particle diameter, the studied geometry variations of screw design, on the mixing performances of the screw conveyor-mixer during material transport were explored. All investigations were performed experimentally and numerically, by using Discrete Element Method (DEM). The experimental results and the results of the DEM investigation were used for the development of mathematical models for the prediction of mixing quality, which are presented in the form of second order polynomial and artificial neural network model.
PB  - Elsevier Science Bv, Amsterdam
T2  - Powder Technology
T1  - Discrete element model of particle transport and premixing action in modified screw conveyors
EP  - 264
SP  - 255
VL  - 336
DO  - 10.1016/j.powtec.2018.06.009
ER  - 

@article{
author = "Pezo, Milada and Pezo, Lato and Jovanović, Aca P. and Terzić, Anja and Andrić, Ljubiša and Lončar, Biljana and Kojić, Predrag",
year = "2018",
abstract = "In this paper, five types of horizontal single-pitch screw conveyors with modified geometry, with three different lengths (400, 600 and 800 mm) were investigated for transport and auxiliary mixing action of two materials: natural zeolite and quartz aggregate (sand) with particle sizes 3, 4 and 5 mm. The geometry of the screw transporter is changed by welding three additional helices oriented in the same or the opposite direction from screw cutting edges, enabling the premixing of materials, during the transport. The proper mixing of the observed materials provides an adequate disposition of zeolite particles within the composite and prevents agglomeration and interference with cement hydration. Zeolite application as a binder in a building material is a possible solution to environmental pollution problems caused by cement production. The influences of screw length, particle diameter, the studied geometry variations of screw design, on the mixing performances of the screw conveyor-mixer during material transport were explored. All investigations were performed experimentally and numerically, by using Discrete Element Method (DEM). The experimental results and the results of the DEM investigation were used for the development of mathematical models for the prediction of mixing quality, which are presented in the form of second order polynomial and artificial neural network model.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Powder Technology",
title = "Discrete element model of particle transport and premixing action in modified screw conveyors",
pages = "264-255",
volume = "336",
doi = "10.1016/j.powtec.2018.06.009"
}

Pezo, M., Pezo, L., Jovanović, A. P., Terzić, A., Andrić, L., Lončar, B.,& Kojić, P.. (2018). Discrete element model of particle transport and premixing action in modified screw conveyors. in Powder Technology
Elsevier Science Bv, Amsterdam., 336, 255-264.
https://doi.org/10.1016/j.powtec.2018.06.009

Pezo M, Pezo L, Jovanović AP, Terzić A, Andrić L, Lončar B, Kojić P. Discrete element model of particle transport and premixing action in modified screw conveyors. in Powder Technology. 2018;336:255-264.
doi:10.1016/j.powtec.2018.06.009 .

Pezo, Milada, Pezo, Lato, Jovanović, Aca P., Terzić, Anja, Andrić, Ljubiša, Lončar, Biljana, Kojić, Predrag, "Discrete element model of particle transport and premixing action in modified screw conveyors" in Powder Technology, 336 (2018):255-264,
https://doi.org/10.1016/j.powtec.2018.06.009 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Radulović, Dragan
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Miličić, Ljiljana
AU  - Stojanović, Jovica
AU  - Grigorova, Irena
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/322
AB  - The effect of the combined actions of milling and hydrophobization procedures applied in construction composites synthesis was investigated. The mortars were prepared with cement (CEM I 42.5) and calcite aggregate complying the standard 1:3 mix ratio. The limestone filler (10 wt%) was added to the mixture upon its mechano-chemical activation in an ultra-centrifugal mill. The activation variables (milling time, rotor velocity, sieve mesh size) were altered to achieve the optimal quality of the powder. The treatment was optimized via chemometric tools. The r(2) values (0.955-0.998) of second order polynomial models accurately predicted the output and the Standard score analysis chose the optimal activation parameters: 4.25 min; 48.58 m/s and 80 gm sieve. The selected filler and all three aggregate fractions were coated with stearic acid via dry procedure. The mortar mixes, prepared with uncoated (M1) and coated (M2) aggregate and filler, were cured for a period of 28 days during which compressive strength and water absorption were monitored. The dimensional changes in mortars were estimated via TMA dilatometer measurements. Thermo-analytical methods (DTA/TGA) were applied in the thermal behavior analysis. Mineralogical and morphological changes in the structure of hardened composite were detected by XRD and SEM, respectively. Limestone aggregate led to lower final compressive strengths in mortar, but it produced an infinitesimally small shrinkage at 1000 degrees C. The hydrophobization via stearic acid initiated the decrease in water absorption and formation of needle-like micro-network that filled structural voids reducing open porosity. The assessment of the effects of limestone utilization as a filler and as an aggregate on the mortar performances confirmed that this novel water-repellent composite is applicable in structural design.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites
EP  - 73
SP  - 61
VL  - 117
DO  - 10.1016/j.compositesb.2017.02.041
ER  - 

@article{
author = "Terzić, Anja and Radulović, Dragan and Pezo, Lato and Andrić, Ljubiša and Miličić, Ljiljana and Stojanović, Jovica and Grigorova, Irena",
year = "2017",
abstract = "The effect of the combined actions of milling and hydrophobization procedures applied in construction composites synthesis was investigated. The mortars were prepared with cement (CEM I 42.5) and calcite aggregate complying the standard 1:3 mix ratio. The limestone filler (10 wt%) was added to the mixture upon its mechano-chemical activation in an ultra-centrifugal mill. The activation variables (milling time, rotor velocity, sieve mesh size) were altered to achieve the optimal quality of the powder. The treatment was optimized via chemometric tools. The r(2) values (0.955-0.998) of second order polynomial models accurately predicted the output and the Standard score analysis chose the optimal activation parameters: 4.25 min; 48.58 m/s and 80 gm sieve. The selected filler and all three aggregate fractions were coated with stearic acid via dry procedure. The mortar mixes, prepared with uncoated (M1) and coated (M2) aggregate and filler, were cured for a period of 28 days during which compressive strength and water absorption were monitored. The dimensional changes in mortars were estimated via TMA dilatometer measurements. Thermo-analytical methods (DTA/TGA) were applied in the thermal behavior analysis. Mineralogical and morphological changes in the structure of hardened composite were detected by XRD and SEM, respectively. Limestone aggregate led to lower final compressive strengths in mortar, but it produced an infinitesimally small shrinkage at 1000 degrees C. The hydrophobization via stearic acid initiated the decrease in water absorption and formation of needle-like micro-network that filled structural voids reducing open porosity. The assessment of the effects of limestone utilization as a filler and as an aggregate on the mortar performances confirmed that this novel water-repellent composite is applicable in structural design.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites",
pages = "73-61",
volume = "117",
doi = "10.1016/j.compositesb.2017.02.041"
}

Terzić, A., Radulović, D., Pezo, L., Andrić, L., Miličić, L., Stojanović, J.,& Grigorova, I.. (2017). The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 117, 61-73.
https://doi.org/10.1016/j.compositesb.2017.02.041

Terzić A, Radulović D, Pezo L, Andrić L, Miličić L, Stojanović J, Grigorova I. The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites. in Composites Part B-Engineering. 2017;117:61-73.
doi:10.1016/j.compositesb.2017.02.041 .

Terzić, Anja, Radulović, Dragan, Pezo, Lato, Andrić, Ljubiša, Miličić, Ljiljana, Stojanović, Jovica, Grigorova, Irena, "The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites" in Composites Part B-Engineering, 117 (2017):61-73,
https://doi.org/10.1016/j.compositesb.2017.02.041 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
AU  - Andrić, Ljubiša
AU  - Olcan, Dragan
AU  - Đorđević, Antonije
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/314
AB  - The focus of the study was on providing insights into interconnections between sintering and development of the crystalline microstructure, and consequently variations in dielectric behavior of four steatites fabricated from a low-cost raw material, i.e. talc. The changes, induced by the alternations of the binders (bentonite, kaolin clay) and fluxing agents (BaCO3, feldspar), were monitored in the temperature range 1000 degrees to 1250 degrees C in which complete densification and re-crystallization of the investigated structures were accomplished. The critical points in the synthesis of steatite materials were assessed by instrumental analyses. Crystallinity changes and mineral phase transition during sintering were monitored by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy accompanied with EDS mapping. The thermal stability was observed on the green mixtures using differential thermal and thermo gravimetric analyses. Electrical measurements recorded variations of the dielectric constant (epsilon(r)) and loss tangent (tan delta) as a function of the sintering temperature. The investigation highlighted critical design points, as well as the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials
EP  - 13275
IS  - 16
SP  - 13264
VL  - 43
DO  - 10.1016/j.ceramint.2017.07.024
ER  - 

@article{
author = "Terzić, Anja and Obradović, Nina and Stojanović, Jovica and Pavlović, Vladimir and Andrić, Ljubiša and Olcan, Dragan and Đorđević, Antonije",
year = "2017",
abstract = "The focus of the study was on providing insights into interconnections between sintering and development of the crystalline microstructure, and consequently variations in dielectric behavior of four steatites fabricated from a low-cost raw material, i.e. talc. The changes, induced by the alternations of the binders (bentonite, kaolin clay) and fluxing agents (BaCO3, feldspar), were monitored in the temperature range 1000 degrees to 1250 degrees C in which complete densification and re-crystallization of the investigated structures were accomplished. The critical points in the synthesis of steatite materials were assessed by instrumental analyses. Crystallinity changes and mineral phase transition during sintering were monitored by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy accompanied with EDS mapping. The thermal stability was observed on the green mixtures using differential thermal and thermo gravimetric analyses. Electrical measurements recorded variations of the dielectric constant (epsilon(r)) and loss tangent (tan delta) as a function of the sintering temperature. The investigation highlighted critical design points, as well as the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials",
pages = "13275-13264",
number = "16",
volume = "43",
doi = "10.1016/j.ceramint.2017.07.024"
}

Terzić, A., Obradović, N., Stojanović, J., Pavlović, V., Andrić, L., Olcan, D.,& Đorđević, A.. (2017). Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(16), 13264-13275.
https://doi.org/10.1016/j.ceramint.2017.07.024

Terzić A, Obradović N, Stojanović J, Pavlović V, Andrić L, Olcan D, Đorđević A. Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials. in Ceramics International. 2017;43(16):13264-13275.
doi:10.1016/j.ceramint.2017.07.024 .

Terzić, Anja, Obradović, Nina, Stojanović, Jovica, Pavlović, Vladimir, Andrić, Ljubiša, Olcan, Dragan, Đorđević, Antonije, "Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials" in Ceramics International, 43, no. 16 (2017):13264-13275,
https://doi.org/10.1016/j.ceramint.2017.07.024 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Pavlović, Vladimir
AU  - Mitić, Vojislav
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/307
AB  - The properties of seven montmorillonite-rich bentonites of different geological origin were investigated prior and subsequent to mechano-chemical processing in an ultra-centrifugal mill. The objective of the experiment was altering the bentonite types and activation parameters in order to determine the optimal milling conditions that produce material which is physico-mechanically and microstructurally applicable as a binder replacement and sorbent in the construction composites. The efficiency of bentonite activation was assessed by chemometrics and Artificial neural networks mathematical modeling. Principal component analysis and analysis of variance were used in the observation of the influence of input variables (bentonite chemical composition) and process parameters (milling duration, rotor velocity) on the product characteristics: density, specific surface area, grain size and distribution, cation exchange capacity, melting point, compressive strength, shrinkage and porosity. When the ANN models for the observed responses, related to predicted bentonite characteristics and quality, were compared to experimental results, they correctly predicted the responses. The processed data also adequately fitted to the regression second order polynomial models. The SOP models, which showed r(2) values from 0.357 to 0.948, and were able to predict the observed responses in a wide range of processing parameters, while ANN models performed high prediction accuracy (0.776-0.901) and can be considered as precise for response variables prediction. The combination of the conducted mathematical analyses showed that that increase/decrease in output values was stabilized after 30 min of activation. Mathematically attained interpretations were correlated with the results of the instrumental analyses (XRD, DTA/TG, SEM) to confirm the adoption of B6 bentonite as a preferable type and 30 min as an optimal milling time for acquiring quality of clay powder that will be used in structural and thermal applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling
EP  - 2562
IS  - 2
SP  - 2549
VL  - 43
DO  - 10.1016/j.ceramint.2016.11.058
ER  - 

@article{
author = "Terzić, Anja and Pezo, Lato and Andrić, Ljubiša and Pavlović, Vladimir and Mitić, Vojislav",
year = "2017",
abstract = "The properties of seven montmorillonite-rich bentonites of different geological origin were investigated prior and subsequent to mechano-chemical processing in an ultra-centrifugal mill. The objective of the experiment was altering the bentonite types and activation parameters in order to determine the optimal milling conditions that produce material which is physico-mechanically and microstructurally applicable as a binder replacement and sorbent in the construction composites. The efficiency of bentonite activation was assessed by chemometrics and Artificial neural networks mathematical modeling. Principal component analysis and analysis of variance were used in the observation of the influence of input variables (bentonite chemical composition) and process parameters (milling duration, rotor velocity) on the product characteristics: density, specific surface area, grain size and distribution, cation exchange capacity, melting point, compressive strength, shrinkage and porosity. When the ANN models for the observed responses, related to predicted bentonite characteristics and quality, were compared to experimental results, they correctly predicted the responses. The processed data also adequately fitted to the regression second order polynomial models. The SOP models, which showed r(2) values from 0.357 to 0.948, and were able to predict the observed responses in a wide range of processing parameters, while ANN models performed high prediction accuracy (0.776-0.901) and can be considered as precise for response variables prediction. The combination of the conducted mathematical analyses showed that that increase/decrease in output values was stabilized after 30 min of activation. Mathematically attained interpretations were correlated with the results of the instrumental analyses (XRD, DTA/TG, SEM) to confirm the adoption of B6 bentonite as a preferable type and 30 min as an optimal milling time for acquiring quality of clay powder that will be used in structural and thermal applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling",
pages = "2562-2549",
number = "2",
volume = "43",
doi = "10.1016/j.ceramint.2016.11.058"
}

Terzić, A., Pezo, L., Andrić, L., Pavlović, V.,& Mitić, V.. (2017). Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(2), 2549-2562.
https://doi.org/10.1016/j.ceramint.2016.11.058

Terzić A, Pezo L, Andrić L, Pavlović V, Mitić V. Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling. in Ceramics International. 2017;43(2):2549-2562.
doi:10.1016/j.ceramint.2016.11.058 .

Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, Pavlović, Vladimir, Mitić, Vojislav, "Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling" in Ceramics International, 43, no. 2 (2017):2549-2562,
https://doi.org/10.1016/j.ceramint.2016.11.058 . .